Leaf holder for books



Feb. 19, 1929.

' R. W. MARTLAND. JR

LEAF HOLDER FOR BOOKS Filed Feb. 29, 1928 INVENTORf r M ATTORNEYSQ Patented eb. 19, 1 929.

UNITED STATES PA ENT OFFICE. i

ROBERT W. MARTLAND, JR., 013 -BERKELEY, CALIFORNIA, AS SIGNOR TO PACIFIC RADIATOR, 0F OAKLAND, CALIFORNIA, A PARTNERSHIP CONSISTING- OF ROBERT W. MABTLAND AND ROBERT W. MARTLAND, JR.

LEAF HOLDER FOR BOOKS.

Application filed February 29, 1928. Serial No. 257,862.

This invention relates to a device adapted to be fitted to books for retaining the leaves of the same in open position.

It isthe principal object of the present invention to provide a simple and 1I16XP611S1V6) device adapted to be mounted adjacent the binding of leaves in a book and normally disposed in an unobstructing position but capable of manipulation to engage the leaves of the book when disposed in an open position to retain the book open. I

In carrying out the invention into practice I provide a hooked memberrotatabl y and reciprocably mounted adjacent the binding of the book. This member is normally disposed in an unobstructing position overlying the leaves but is capable ofbeingextended a nd aligned with leaves arranged in open position and engaged with the leaves to retain them in open position.

One form which the inventionimay assume is exemplified in the following description and illustrated by way of example in the 2.0-

companying drawings, in which:

Fig. l is a perspective, View of a book with the covers open showing my improved device arranged on the book; a

Fig. 2 is a similarview of the book with a' portion of the leaves disposed in open posi-' tion with my improved device engaging the leaves to retain them in said position.

Referring more particularly to the accompanying drawings, 10 indicates a book having covers 11 between which. a plurality of pages 12 are disposed. These pages 12 are bound together along one edge as indicated by the numeral 14. The manner in which these leaves are bound together is of no par-,

ticular importance but'in the present instance I have shown a loose leaf binding including an upper plate 15 throughwhich binding elements 16 project. In the present instance the binding of the leaves is arranged at right angles to the fold of the'covers. This is not necessary, however, as my invention may be applied to books constructed in a manner other than that illustrated.

' Arrangedon the plate 15 is a guide 17 arranged parallel to the bound edges of the and rotatably disposed in leaves. Slidably member 18 which may be this guide 17 is a made of comparatively'stilf wire if desired.

The outer end of this member 18 is hooked osed in aposition overlying the When it is desired to maintain the leaves of the book open, the member 18 is extended outwardly so that the pages when opened will clear the hooked end of the member. The

' member is then slightly revolved so as to align its hooked portion with the opened leaves and then moved inwardly to engage the leaves as shown in Fig. 2. Such engagement will retain the leaves in open position. I

When it is desired to release the leaves, it

vis only necessary to disengage the hooked end 19 therefrom, permit the leaves to assume their normal position [and then return the member 18 to the position disclosed in Fig. 1. It is obvious from the foregoing that the device here disclosed while simple and inexpensive in construction, provides eflfective means for retaining the leaves of thebook in open position. i V 7 While I have shown the preferred form of my invention, it is to be understood that various changes may be madein its construe tionflbythose skilled in the art without de-' ing from the spirit of the invention, as

part

definedin the appended claims. l

-, Having thus described my invention, what I claim and desire to secure by LettersPatent is:

' I 1. In combination with a plurality of leaves I bound together at one edge, guide means adjacent the bound edge, a member rotatably and reciprocably connected with said guide means to reciprocate in a direction parallel to the bound edge and to rotate in a plane at right angles thereto, said memberhaving leaf engaging means adapted to be engaged with opened leaves bymanipulation of the member to retain said leaves in open position, said member and means being capable of being mounted in said guide, the outer end of said disposed flatly overlying the leaves When the member being hooked whereby the member 1 leaves are in closed position. may be disposed flatly overlying the leaves or" 2. In combination with a plurality of be extended and rotated to align the hook leaves bound together at one edge, of a guide with opened leaves and then engaged With mounted adjacent said bound edge and arthe leaves to retain them in open position. ranged parallel thereto, a member having an elongated portion rotatably and reciprocably ROBERT lV. MARTLAND, J R. 

